Editing Input syntax manual (section)

=== set sie ===

 '''set sie''' ''ITER''
Chooses the [[Stochastic Implicit Euler burnup scheme]] to be used for the burnup calcualtion. Input values:

{|
| <tt>''ITER''</tt>
| : tolerance (negative value) or maximum number of iterations (positive value) for each burnup step
|}

<u>Notes:</u>
*The SIE burnup scheme is mainly intended for burnup calculations that develop instabilities using the default predictor corrector methods.
*The SIE burnup scheme cannot be used with decay or activations steps, or zero flux.
*The convergence criteria is set either by the tolerance or the maximum number of iterations. 
**If the tolerance is given, <tt>''ITER''</tt> < 0, the maximum number of iterations is set to 500. 
**If the maximum number iterations is given, <tt>''ITER''</tt> > 0, the tolerance is set to 0.0.